package com.cdht.util;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MD5Util {
    /** 
     * 32位MD5加密方法  
     * 16位小写加密只需getMd5Value("xxx").substring(8, 24);即可 
     *  
     * @param sSecret 
     * @return 
     */  
    public static String getMd5Value(String sSecret) {  
        try {  
            MessageDigest bmd5 = MessageDigest.getInstance("MD5");  
            bmd5.update(sSecret.getBytes());  
            int i;  
            StringBuffer buf = new StringBuffer();  
            byte[] b = bmd5.digest();// 加密  
            for (int offset = 0; offset < b.length; offset++) {  
                i = b[offset];  
                if (i < 0)  
                    i += 256;  
                if (i < 16)  
                    buf.append("0");  
                buf.append(Integer.toHexString(i));  
            }  
            return buf.toString();  
        } catch (NoSuchAlgorithmException e) {  
            e.printStackTrace();  
        }  
        return "";  
    } 
}
